7 Best Chart Plotter Covers For Sun Protection For Sailors

The harsh maritime environment acts as a relentless enemy to high-end marine electronics, where intense UV rays can cloud screens and degrade delicate internal components in mere months. Neglecting to protect a chart plotter is an invitation for premature hardware failure, turning a vital navigation tool into a useless piece of sun-bleached plastic. Investing in a high-quality cover serves as the single most effective insurance policy for maintaining screen clarity and device longevity while out on the water.

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Sea-Dog Canvas Cover: Our Top Overall Pick

The Sea-Dog canvas cover earns the top spot for its blend of rugged durability and universal design. Constructed from heavy-duty, marine-grade fabric, this cover resists tearing while effectively blocking the intense UV penetration that destroys LCD backlighting. It manages to balance a snug, secure fit with an ease of application that makes it ideal for quick deployment during short harbor stops.

This option is perfect for the sailor who values reliability without the need for unnecessary bells and whistles. It provides the essential protection needed to keep sensors and displays operational for years longer than unprotected units. Choose this if functionality and straightforward engineering take priority over aesthetic flair.

Taylor Made Sunbrella Cover: Premium UV Shield

When long-term exposure to the brutal summer sun is the primary concern, the Taylor Made Sunbrella cover stands unmatched. Sunbrella fabric is the industry gold standard for a reason: it offers exceptional color retention and superior resistance to rot, mildew, and UV degradation. This cover feels thicker and more substantial, providing a physical barrier that keeps the plotter casing cool to the touch even under high noon conditions.

While the price point sits higher than basic vinyl alternatives, the investment pays for itself by preventing the expensive screen delamination that often follows years of sun damage. This is the optimal choice for boats kept in tropical climates or those stored uncovered in slipways for months at a time. It is the premier selection for owners who demand the absolute best protection for high-end, large-format navigation displays.

Navico Binnacle Guard: Best for Pedestal Helms

Navigating a cockpit requires clever use of space, and the Navico Binnacle Guard excels where plotters are mounted directly onto a pedestal rail. By utilizing a form-fitting design that accounts for the unique curvature of binnacle mounts, this cover stays put even when strong winds whip across the deck. It eliminates the flapping common with generic covers, preventing potential abrasion to the plotter surface during rough passages.

This cover is the clear answer for the sailor with a traditional pedestal setup who struggles to keep generic rectangular covers from blowing off. Its specific engineering ensures full coverage of the cables and rear connections, which are often overlooked by standard universal models. If the navigation system is mounted on a rail, look no further than this tailored solution.

Blue Performance Cover: Best for Easy Access

The Blue Performance line is engineered for the sailor who frequently needs to uncover and re-cover the screen during active coastal cruising. Featuring a clever attachment system that allows for rapid release, this cover minimizes the time spent fiddling with snaps or elastic cords when minutes matter. The internal padding adds a secondary layer of protection against accidental impacts during sail handling or movement in the cockpit.

This product is highly recommended for crews that value efficiency and a clean, modern aesthetic. The thoughtful inclusion of storage pockets for cleaning cloths or small tools makes it a favorite among organized skippers. Choose this option if the navigation setup is used heavily and requires a cover that never feels like a chore to deploy.

Sail-Rite Kit: Best for a Custom DIY Fit

For vessels with unique, custom-mounted plotter arrays or discontinued hardware, off-the-shelf options rarely suffice. The Sail-Rite kit provides all the high-quality materials, marine-grade thread, and specialized instructions needed to fabricate a bespoke cover. This approach ensures the cover fits like a second skin, eliminating the air gaps where moisture and grit can collect.

Undertaking a DIY project with Sail-Rite is not just about the final fit; it is about knowing exactly how the protective layer is constructed. It is the perfect choice for the hands-on sailor who enjoys maintaining their boat with professional-grade materials. Opt for this kit if the equipment configuration is irregular and requires a precision fit that mass-produced covers cannot provide.

Harken WeatherMax 80: Best for Offshore Use

Offshore sailing demands equipment that can withstand salt spray, heavy green water, and extreme wind loads without failing. The Harken WeatherMax 80 cover utilizes a highly breathable, water-repellent fabric that prevents condensation build-up beneath the cover—a critical feature for electronics prone to short-circuiting. It is lightweight yet incredibly strong, designed to hold its shape perfectly even when subjected to constant ocean air.

This is the definitive choice for the serious blue-water cruiser who expects to encounter diverse and punishing weather. The material’s inherent breathability reduces the risk of mold or fungus inside the housing, which is a common silent killer of marine electronics. When the voyage takes the boat far from the coast, rely on the proven structural integrity of WeatherMax.

Seaworthy Goods Cover: Best Value Option

The Seaworthy Goods cover provides a practical, no-nonsense solution that hits the sweet spot between affordability and performance. Made from high-denier, weather-resistant fabric, it effectively shields sensitive screens from glare, heat, and moisture without breaking the budget. It utilizes a simple but effective drawstring system to ensure the cover remains firmly anchored in place during transit or at the dock.

This is an excellent choice for the recreational sailor who keeps the boat in a protected marina or uses it primarily on weekends. It delivers the fundamental protection necessary for basic device longevity without charging a premium for complex hardware. For those who need a functional, cost-effective guard for their hardware, this represents the best value for money.

How to Measure Your Plotter for a Perfect Fit

Precision is paramount when selecting a cover; a loose cover allows UV light to creep in at the edges, while one that is too tight can strain the screen or mount. Measure the height, width, and depth of the screen housing at the widest points to ensure adequate coverage. Always factor in the thickness of any knobs, buttons, or protrusions that extend beyond the screen surface.

If the plotter is mounted on a bracket, decide whether the cover should only protect the display or if it should also encompass the bracket and base. Covering the entire mount provides added protection for power cables and data ports, which are notorious for failing after repeated sun exposure. Document these dimensions in the boat’s maintenance log for easy reference during future equipment upgrades.

Choosing the Best Material for Your Climate

Climate significantly influences material selection, as the requirements in a hot, arid region differ from those in a damp, temperate climate. In sunny, desert-like areas, high UV-resistance and heat reflection are the top priorities to prevent the screen from overheating. In contrast, those in humid, rainy climates must prioritize breathability to prevent the accumulation of trapped moisture, which can cause internal electronics to corrode.

• Sunbrella: Best for high UV resistance and long-term durability.
• WeatherMax: Ideal for offshore use due to superior breathability and strength.
• Vinyl/PVC Blends: Good for budget-friendly protection in moderate climates.
• Marine-Grade Canvas: Excellent for general durability and physical impact protection.

Cleaning and Storing Your Chart Plotter Cover

Proper maintenance of the cover itself extends the life of the plotter it protects. Rinse the cover with fresh water regularly to remove salt crystals, which can act as tiny abrasives against the plotter screen if they get trapped inside. If the material becomes soiled, use a gentle soap and a soft brush, allowing the cover to air dry completely before replacing it on the device to prevent mold growth.

Avoid the temptation to store the cover in a damp, dark locker when the boat is in use, as this encourages mildew. If the cover has elastic components, inspect them seasonally for signs of dry rot or loss of tension. Keeping the cover clean and storing it in a breathable bag when not in use ensures that the protective barrier remains effective for its entire lifespan.

A chart plotter is a significant investment that deserves proactive maintenance, and selecting the right cover is the most effective way to safeguard your display. By matching the material and design to the specific needs of your vessel and climate, you ensure that your navigation systems remain clear, responsive, and ready for your next adventure. Consistent use of these covers is the hallmark of a prepared sailor who understands that small investments in gear today prevent major equipment replacements tomorrow.